Initial Commit

2025-07-04 20:33:06 +03:00
commit 8f09347ae0
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+/*
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ * All rights reserved.
+ *
+ * This source code is licensed under the license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
+using Meta.WitAi.Attributes;
+using Meta.WitAi.Json;
+using Meta.WitAi.Utilities;
+using UnityEngine;
+using Utilities;
+
+namespace Meta.WitAi.CallbackHandlers
+{
+    /// <summary>
+    /// Triggers an event when no intents were recognized in an utterance.
+    /// </summary>
+    [AddComponentMenu("Wit.ai/Response Matchers/Out Of Domain")]
+    public class OutOfScopeUtteranceHandler : WitResponseHandler
+    {
+        [Tooltip("If set to a value greater than zero, any intent that returns with a confidence lower than this value will be treated as out of domain/scope.")]
+        [Range(0, 1f)]
+        [SerializeField] private float confidenceThreshold = 0.0f;
+        [Space(WitRuntimeStyles.HeaderPaddingTop)]
+        [TooltipBox("Triggered when a activation on the associated AppVoiceExperience does not return any intents.")]
+        [SerializeField] private StringEvent onOutOfDomain = new StringEvent();
+
+        protected override string OnValidateResponse(WitResponseNode response, bool isEarlyResponse)
+        {
+            if (response == null)
+            {
+                return "Response is null";
+            }
+            if (response["intents"].Count > 0)
+            {
+                if (response.GetFirstIntent()["confidence"].AsFloat < confidenceThreshold)
+                {
+                    return string.Empty;
+                }
+
+                return "Intents found";
+            }
+            return string.Empty;
+        }
+        protected override void OnResponseInvalid(WitResponseNode response, string error) {}
+        protected override void OnResponseSuccess(WitResponseNode response)
+        {
+            onOutOfDomain?.Invoke(response.GetTranscription());
+        }
+    }
+}